Arrangement for teasing and layering spun glass



Jaren/arf Nov. 15, 1932. A. B'oRcHoLT E'r AL ARRANGEMENT FR TEASING AND LAYERING SPUN GLASSl Filed oct. 28. 1951 Patented Nov. 15, 1932 UNITED 's'ra'ras ATENT oI-Flcla'- ALBERT BORCHOLT AND OTTO m13! BEBGEDORF, NEAR HAMBURG, GERMANY, ASSIGNOBS T0 OSCAR GOSSLEB, OF HAMBURG, GEBIANY ABBANGEHENT FOB TEASING AND LAYEBING SPUN GLASS' Application illed (Matcherl 28, 1931 Serial No., 571,814, and in Germany lay 12, 1981.

The invention relates to an arran ement for teasin and layering spun glass or the purpose o producing loose acklngs for heat insulation purposes or the l' e.

.In the manufacture of spun glass the thin libres are wound densely on a rapidly rotatin drum. In order that the spun glass which is requently used as heat insulating material should have` a high heat insulating capacity, it must be regularly layered and used -in the loosened state for the manufacture of heat insulating bodies. p libres after being taken from the drum must be loosened i. e., teased or separated, and subsequently layered.

This teasing and layering of the spun glass has for some considerable time been effected manually which is a tedious and expensive operation.

The object of the present invention is to effect the teasing and layering mechanically.

In order to effect this, according to the invention the spun glass which is taken in hanks from the spinning drumlis hung over a trestle-like frame in such manner that it hangs down on either side of the frame as equally as possible. B means of a conveyor of any suitable kind, isposed preferably in the centre of the frame, the teasing of the hanks and the separation of the glass fibres is now effected. In'this operation the hanks hanging downwardly' in the form of an inverted U are gradually raised into one plane so that finally a layer of one or more strata of spun glass fibres is Obtained which ultimately due t progressive motion along the frame is deposited on a bed preferably automatically. In order'to allow the glass libres in the layer to pass to the bed in the extended condition and in order to lift the ends of the spun glass fibres hanging down'on either side of the frame, the apparatus is of corresponding configuration in that the outer surface of the frame, which is curved in the form of a horse-shoe or constructed in the shape of a gable, gradually merges into a plane surface. During this operation provision must be made for moving the ends of the glass fibres as quickl as the -central portions and this is effected y further conveyor arrange- For this reason the glass,

ments which are dis osed in the frame laterally of the forwar end of the central conr veyor. These conveyor arrangements operate on the spun glass fibres in such manner that when they arrive at the plane 'end of' the frame they are in an extended position nl ypass in this plane extended state to the One embodiment of the arrangement according to the invention is shown by way of example in the drawing:

Fig. 1 is a central longitudinal section through an arrangement according to the invention.

Fig. 2- is a plan view of the' arrangement shown in Fig. 1.

Fig. 3 is a section along the'line 3-3 of` Fig.

\ The .frame is indicated by a, a' and a; the rear part a of the frame is inclined downward1y,'the adjacent central part a is displosed horizontally and the foremost part aas a ramp-like construction. vWhereas the rear portion a and the central portion a of the fra-me are of horseshoe or gable shape in cross-section, the front part a"1 ofr the frame is shaped so as gradually to broaden towards the front. A slot b is provided along the crest of the portions a and a ofthe frame. This slot b serves to receive the upper span of an endless band c which passes over the discs d d d2 and d and projects slightly above the slot b in the frame a, a a2.

In addition slots f, f are-provided in the portion a2 of the frame to receive conveyor ands g, gf. These conveyor bands pass over rollers h, z and lat. The transport bands c, g and g are driven in any suitable manner and 1n such way that in each case the'v upper spans move forwardly from the rear. The spun glass, which is taken in the form of hanks'from the winding drum, is placed on the rear art a of the frame in such manner that it angs equall on either side in the manner indicated in i 1.

The glass hanks hangmg downwardly from the gable-shaped portion a ofthe frame .are engaged by the conveyor c and teased or drawn apart into'individual libres or Thus glass strands strands, the lass hanks preferably'being beaten or lifte or agitated y means o f flaps or the like, not shown in the drawing, provided laterally on the ortion a of the frame.

thinner and finer as they proceed towards are teased out from the compact glass hanks. While the glass banks are hanging on the gable-shaped art a somewhat in the shape 1 of an inverte U, they are gradually spread -out on the oblique guiding surface of the section a2 of the frame so that the downwardly hanging strands are gradually lifted and when approximately in the vicinity of. the roller d2 are disposed completely in a straight line so that a completel level la er (f spun glass is fed to the bed Z y the ro ler In this layer of s un glass the individual fibres which initial y are loosened by the endless band c, and are further teased or separated bi1; combined action of the conveyors c, g an g are finally disposed adjacent each other or superimposed so as to obtain spun glass la er or stratum of uniform thickness which t en passes to the bed.

In the drawing this bed is indicated by Z. It is shown by way of example as a carriage which can be moved to and fro beneath the a0 forward end 1' of the teasing orseparating frame.

In Fig. 1, four layers of spun glass k, c, k, 7: are shown already deposited on the bed `Z, while a fifth layer of spun glass c this operation the bed Z is moved forwardl i. e. to the right in Figs. 1 and 2.

We claim glass comprising a trestle-like frame, a rampshaped forward end to said frame and at least one conveyor associated with said frame for conveyin the spun glass towards said forward en 2. Apparatus for teasing and layering spun glass comprising a trestle-like frame, a rampshaped forward end to said frame, a central conveyor extending longitudinally of -said frame to convey the s un glass towards said forward end and auxiliary lateral conveyors associated with said ramp for assisting the conve ance of the spun glass thereover.

3. pparatus for teasin and layering spun glass comprising a trestleike frame, a rampshaped forward end to said frame, at least one conveyer associated with Asaid frame for conveyin the spun glass towards said forcoming progressively forward end, auxiliary lateral conveyors as sociated with said ramp for assisting the conosition of spun glass'thereon.

6. A paratus for -teasing and layering spun g ass comprisin a trestleLlike frame, a ramp-shaped forward end to said frame, a central conveyor extending longitudinally of said frame to convey the spun glass towards said forward end, auxiliary lateral conveyors associated with said ramp for assisting the conveyance `of the spun glass thereover, and means disposed beneath said forward end to receive the spun glass therefrom and adapted to be advanced in the direction of conveyance of the conveyor during the deposition of spun glass thereon.

In testimony whereof we have ailixed our signatures.

ALBERT BORCHOLT.

OTTO MEYER.

35 is in the process of being deposited. During y 1. Apparatus for teasing and layering spun ward en and means disposed beneath said forward end to receive thespun glass therefrom.'

4. Apparatus for teasin and layering spun lass comprising a trestleike frame, a rampaped forward end to said frame, a central conveyor extending longitudinally of said frame to convey the spun glass towards said lll 

